Multiple Choice
The process of stabilizing the structure of an enzyme in its active form by the binding of a molecule outside the active site is an example of __________.
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3. Energy & Cell Processes
Enzyme Inhibition
1:52 minutesProblem 16
Textbook Question
Organophosphates (organic compounds containing phosphate groups) are commonly used as insecticides to improve crop yield. Organophosphates typically interfere with nerve signal transmission by inhibiting the enzymes that degrade transmitter molecules. They affect humans and other vertebrates as well as insects. Thus, the use of organophosphate pesticides poses some health risks. On the other hand, these molecules break down rapidly upon exposure to air and sunlight. As a consumer, what level of risk are you willing to accept in exchange for an abundant and affordable food supply?
Verified step by step guidance1
Understand the role of organophosphates: They are used as insecticides to improve crop yield by interfering with nerve signal transmission.
Recognize the mechanism of action: Organophosphates inhibit enzymes that degrade neurotransmitter molecules, affecting both insects and vertebrates, including humans.
Consider the health risks: Evaluate the potential health risks posed by organophosphate exposure to humans and other vertebrates.
Acknowledge the environmental breakdown: Organophosphates break down rapidly when exposed to air and sunlight, reducing their long-term environmental impact.
Weigh the benefits and risks: As a consumer, assess the trade-off between the health risks and the benefits of an abundant and affordable food supply.
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1mKey Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Organophosphates
Organophosphates are a class of organic compounds that contain phosphate groups and are widely used as pesticides. They function by inhibiting acetylcholinesterase, an enzyme crucial for breaking down neurotransmitters in the nervous system. This inhibition leads to the accumulation of neurotransmitters, resulting in disrupted nerve signal transmission, which can be harmful to both pests and non-target organisms, including humans.
Health Risks
The use of organophosphate pesticides is associated with various health risks due to their neurotoxic effects. Exposure can lead to acute symptoms such as headaches, dizziness, and nausea, as well as long-term effects like cognitive impairments and increased risk of certain diseases. Understanding these risks is essential for consumers when weighing the benefits of pesticide use against potential health consequences.
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Risk-Benefit Analysis
Risk-benefit analysis is a decision-making process that involves comparing the potential risks of an action against its benefits. In the context of organophosphate use, consumers must evaluate the health risks associated with pesticide exposure against the advantages of increased crop yields and food affordability. This analysis helps individuals determine their acceptable level of risk in pursuit of food security and economic stability.
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